Phonograph attachment



.Juhe 16, 1925.

' M. A. DOWNES PHONOGRAPH ATTACHMENT 2 Sheetsl Filed March 9, 1923 Iiwentor: flaiea'onefi. flames, .2; v AM 9 flag,

June 16, 1925,

M. A. DOWN ES PHONOGRAPH ATTACHMENT Filed March 9, 1923 2 Sheets-Sheet 2 /l, A? 4 65 53'- nunHHHHi-i I M); I N 7 Inventor's Marion .fiownes, y M v T all whom it c'na'yconcern;

Patented the is; 1925'.

U I ED vSTerse PATENT orrice.

monomers AT 'i QE N Application 'filed March 9, 1923. Serial No. ezasea.

Be it known that I, MARION A. Downns, a citizen of the United States, and a resident of Test ltoxa'ury, county o fSufio'lk, and State of Massachusetts, have invented an Improvement in Phonograph Attachments of which the 'fo-llow'ing description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing'like parts.

My invention" relates to optical display apparatus and particularly but not exclusively to an attachment' for phonographs for displaying pictures illustrating the record played bythe phonograph.

My inyention will be best understoodfrom the i'ollowing description when'readin light of the accompanying drawings of a specific embodiment of my invention selected for intention will be more, particularly pointed out in the appended claims. Y

In the drawings F ig, 1 is a lfront elevation of the submitted embodiment of my invention;

Fig. 2 is a section on-the Fig.1; I a V Fig. 3 is a rear elevation showing the device applied to a phonograph; andv Fig. 4 is a section onthe line 4- of Fig.3." i Q 1t ferring to the drawings I have indicated the phonograph at 1 this type of machine as will be understood being with mechanism, usually a spring motor, for rotating the turntable 3 upon which is placed the record 5 to be played, the turntable being supported on the mandrel 7 which projects above theturntable and centers the record with the turntable. For illustrating the record played by the phonegraph I provide a film 9 on one or both sides of which is displayed pictures and which film I move in synchronism with the record .so as to illustrate the sound pro duced. v p

Providing a support tor the film and its actuating mechanism l'have shown feet 11 resting upon the phonograph at the s des of the turntable whileresting upon the feet are the bars 13 and 15 the same being secured to the feet and holding them in spaced relation and projecting upwardly from each bar near their opposite ends Ifhave shown columns 17 which at their upper ends support bars 19. The frameor support for line of provided I the film and its actuating mechanism thus i'OlDlQd 1f desired may be braced in any suitable manner, .as for exampleby members extending from one bar 19 to the other, these members being indicated at 21 in Fig. '3.

Referring particularly to Figs. 2 and 3 l have provided a spindle or reel 23 on which reel the film is adapted to be wound from the reel 25, t-he film passing fromthe' reel or spindle 25 about the guide spindles 2 7 and '29 at opposite ends oithe front of the support and then extending diagonally across the support to the rear where it passes over a guide spindle 31 and a spindle 33 to the spindle 23; Referring to Fig. l 1 have indicated the front of the support provided with the curtains 35 in imitation of drapp a g eries which gives the front of the device the illnstratiye purposes while the scope of my appearance of a miniature stage so that the pictures d splayed upon the film appear as passing across the stage.

As illustrated in Fig. 3 aboutthe upper end of the spindle 23 I pass a cord or other rt l gature 35'which passes oyer a pulley or guide 37 and is maintained under tension by the spool shapedweight 39. It will like: wise be noted; that about the upper end of the spindle 25 I pass a ligature 41 which passesover the pulley or guide/l3 to a second spool shaped weight 45. Each of the spool shapedweights is provided with an axialopening d7 extending entirely therethrough which enables the spools to be removably mounted upon the fixed arbor e9 carried by the support. so arranged that as the pulley 39 descends the ligature 35 is unwound from the spindle 23 while the ligature 4-1 is wound upon the. spindle25. .As hereinafter will appear the spindles 25 and 23 are removably sup- The parts are ported which enables them to be inter- "changed after the film is wound upon the spindle 23 so as to allow it to be rewound fiipon. the spindle 25 and again display the pictures.

TvVhen the spindlesare ready to be interchanged the ligature 41 will be unwound" from the spool 45 and wound upon the spindle 25, while the ligature 35 will be unwound from the spindle 23, and consequently by winding the ligature 35 by hand upon the spool 39 and placing the spool 39- upon the arbor t9 the spindles when interchanged will have their respective spools and ligatures in thesame relation as shown in Fig. 3.

As shown in the drawings, particularly in Fig. 3, the spindle 33 atits lower end is provided with a member 51 for removably engaging a turn table part such as the mandrel 7, this member preferably being formed of cork, rubber or other yielding substance. At its upper end the spindl 33 has a pointed pivot which has a bearing in the block 57 carried by the bar 19. In consequence of this construction the spindle 33 will be rotated at the same speed as the mandrel. I may provide any convenient means for insuring that the periphery of the spindle and the film move at the same linear speed. F or this purpose I have shown the film provided with a row of perforations 59 which are engaged by the radiating spurs 61 on the spindle. The tension 011 the ligature 35 tends to rotate'the spindle 23 and in consequence wind the film upon the spindle while the spindle 3S insures that the film will be moved in synchronism with the record, 1t being understood that by this arrangement the spindle acts as an esc-apement for the weight motor .formed by the ligature and associated parts, and also that the weight 39 exerting tension on the ligature 35 acts to take the load off the spindle 33,

" thus insuring that only a negligible amount of work need be done by the record rotating mechanism of the phonograph in moving the film. For keeping the film under tension I provide the resilient member 62 in the form of a leaf spring supported on the bar 17 adjacent the spindle 25, the member 52 as clearly illustrated by Fig. 2 bearing upon the film.

Any convenient method of mounting the spindles 27, 29 and 31 may be provided.

For the purpose of reducing friction I have shown each of these spindles provided with a pivot 63 having a pointed end engaging a bearing plate 6 1. The upper ends of the spindles 23 and 25 are supported in the same manner as the spindles 27, 29 and 31 and for permitting easy removal of the spindles 23 and 25 I provide yielding bearings for the lower end of each, these bearings being exemplified in Fig. 4 by the plate 65 resting upon the block 66 of cork or other yieldable material. For guiding the pivots 63 cooperating with the plates 65 I surround each member 66 by the U-shaped member 67 which as clearly illustrated in Figs. 2 and l have their open ends towards the outer side of the bar 13.

Although I have described for purposes of illustration one specific embodiment of my invention it is to be. understood that I am not limited thereby to its particular mechanical details, but that within the scope of my invention wide deviations may Claims: 7 1. An attachment for a phonograph comprising a support adapted to be applied to or removed from a phonograph and having means for applying the same to the phonograph above the turn-table thereof, said support having means for holding with relation to a visible field a traveling display film bearing indications related to successive portions of the phonograph record, said holding means comprising a supply spindle and a winding spindle, the former being removable to permit the substitution of different fihns severally related to different phonograph records, devices actuated by the phonograph for positively engaging successive portions of the film intermediate said spindles and maintaining a feed of the film across the field of vision at a uniform and continuous rate for a given phonograph speed, said devices comprising a spur wheel feed-controlling device cooperating with successive perforations in the film, a light and easily turned driving spindle on said support to actuate said devices, and a detachable driving connection between said driving spindle and phonograph turn-table part comprising an apert-ured cap adapted to set over the phonograph mandrel when the support is applied to the phonograph.

2. An attachment for a phonograph com-- prising a support adapted to be applied to or removed from a phonograph and having means for applying the same to the phonograph above the turn-table thereof, said support having means for holding with relation to a visible field a traveling display film hearing indications related to successive portions of the phonograph record, said holding means comprising a supply spindle and a winding spindle, the former being removable to permit the substitution of diiferent films severally related to different phonograph records, devices actuated by the phonograph for positively engaging successive portions of the film intermediate said spindles and maintaining a feed of the film across the field of vision at a uniform and continuous rate for a given phonograph speed, said devices comprising a spur wheel feed-controlling device cooperating with successive perforations in the film, a light and easily turned driving spindle on said support to actuate said devices, and a detachable driving connection between said driving spindle and phonograph turn-table part.

3. An attachment for a phonograph com prising a support adapted to be applied to or removed from a phonograph and having means for applying the same to the phonegraph above the turn-table thereof, said support having means for holding with relation to a visible field a traveling display film bearing indications related to successive portions of the phonograph rec-0rd, said holding means comprising a supply spindle and a winding spindle, the former being removable to permit the substitution of diflierent films severally related to different phonograph records, devices actuated by the phonograph for positively engaging successiveportions of the film intermediate said spindles and maintaining a feed of the film across the field of vision at a uniform'and continuous rate for a given phonograph speed, a light and easily turned driving spindle on said support to turn said device, and a detaclable driving connection between said driving spindle and phonograph turntable part 4. The combination with a phonograph of a support, a pair adapted to be unwound from one of said spindles while being wound upon the other of said spindles, means for moving said film by and in synchr onism with the record rotating mechanism of said phonograph, a ligature associated with each spindle, a weight for each ligature for tensioning said ligature, said ligature adapted to be unwound simultaneously with the winding-of the film on said spindle, said weights being in the form of a spool, a rotary support for said spools whereby the ligature for the spindle upon which said film is being unwound may be unwound from its associated spool and wound upon said spindle, and said spindles being removably supported on said support whereby their positions can of rotary spindles, a film,

be reversed and the film Wound from one to .means comprising a, supply spindle and a winding spindle, devices actuated by the phonograph for positively engaging successive portions of the film intermediate said spindles and maintaining a feed of the film across the field of vision at a uniform rate for a given phonograph speed, said devices comprising a spur wheel, feed-controlling device cooperating with successive perforations in the film, a driving spindle on said support to turn said feed controlling device, a drive connection for the spindle detachably related to the phonograph comprising an apertured cap of yielding material connected to the spindle and arranged to set over and grip the mandrel when the support is applied to the phonograph, and means to turn the winding spindle to wind taut thereon the film engaged by the feedcontrolling device.

In testimony whereof, I have signed my name to this specification.

MARION anownns. 

